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<?php |
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namespace Cmobi\RabbitmqBundle\Rpc; |
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use Cmobi\RabbitmqBundle\Rpc\Exception\InvalidBodyAMQPMessageException; |
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use Cmobi\RabbitmqBundle\Rpc\Exception\RpcInternalErrorException; |
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use Cmobi\RabbitmqBundle\Rpc\Exception\RpcInvalidResponseException; |
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use Cmobi\RabbitmqBundle\Rpc\Response\RpcResponse; |
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use Cmobi\RabbitmqBundle\Rpc\Response\RpcResponseCollection; |
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use Cmobi\RabbitmqBundle\Rpc\Response\RpcResponseCollectionInterface; |
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use PhpAmqpLib\Message\AMQPMessage; |
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class BaseService implements RpcServiceInterface |
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{ |
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private $queueName; |
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private $rpcHandler; |
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private $rpcMessager; |
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/** @var array */ |
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protected $queueOptions = [ |
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'name' => null, |
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'passive' => false, |
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'durable' => true, |
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'exclusive' => false, |
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'auto_delete' => false, //Em caso de falha no serviço a filha se mantém para que outro processe. |
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'nowait' => false, |
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'arguments' => null, |
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'ticket' => null |
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]; |
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public function __construct(Handler $handler, RpcMessager $messager, array $queueOptions, array $parameters = null) |
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{ |
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$this->rpcHandler = $handler; |
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$this->rpcMessager = $messager; |
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$this->queueName = $queueOptions['name']; |
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$this->queueOptions = array_merge($this->queueOptions, $queueOptions); |
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} |
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/** |
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* @return \Closure |
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* @throws InvalidBodyAMQPMessageException |
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*/ |
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public function createCallback() |
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{ |
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$callback = function (AMQPMessage $message) { |
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try { |
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$requestCollection = $this->rpcMessager->parseAMQPMessage($message); |
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$responseCollection = $this->getHandler()->handle($requestCollection); |
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} catch (\Exception $e) { |
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$responseCollection = new RpcResponseCollection(); |
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$exception = new RpcInternalErrorException(); |
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$response = new RpcResponse(null, [], $exception); |
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$responseCollection->add($response); |
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} |
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$messageResponse = $this->buildResponseMessage($responseCollection, $message); |
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$this->publish($message, $messageResponse); |
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}; |
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return $callback; |
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} |
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/** |
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* @param RpcResponseCollectionInterface $responses |
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* @param AMQPMessage $requestMessage |
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* @return AMQPMessage |
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* @throws RpcInvalidResponseException |
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*/ |
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public function buildResponseMessage(RpcResponseCollectionInterface $responses, AMQPMessage $requestMessage) |
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{ |
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$rpcResponse = []; |
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/** |
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* @var RpcResponse $response |
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*/ |
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foreach ($responses->all() as $response) { |
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if (is_null($response->id)) { |
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$response->id = $requestMessage->get('correlation_id'); |
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} |
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$rpcResponse[] = $response->toArray(); |
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} |
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try { |
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$rpcResponse = json_encode($rpcResponse); |
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} catch (\Exception $e) { |
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throw new RpcInvalidResponseException($e); |
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} |
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$amqpResponse = new AMQPMessage( |
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(string)$rpcResponse, |
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['correlation_id' => $requestMessage->get('correlation_id')] |
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); |
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return $amqpResponse; |
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} |
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/** |
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* @param AMQPMessage $message |
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* @param $content |
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*/ |
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public function publish(AMQPMessage $message, $content) |
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{ |
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$message->delivery_info['channel']->basic_publish( |
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$content, |
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'', |
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$message->get('reply_to') |
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); |
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$message->delivery_info['channel']->basic_ack( |
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$message->delivery_info['delivery_tag'] |
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); |
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} |
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public function getQueueName() |
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{ |
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return $this->queueName; |
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} |
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/** |
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* @return array |
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*/ |
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public function getQueueOptions() |
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{ |
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return $this->queueOptions; |
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} |
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/** |
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* @return Handler |
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*/ |
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public function getHandler() |
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{ |
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return $this->rpcHandler; |
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} |
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/** |
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* @return RpcMessager |
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*/ |
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public function getMessager() |
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{ |
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return $this->rpcMessager; |
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} |
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} |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.